초록 ▼

A solenoid having a high degree of proportionality. A stationary pole is disposed within an electromagnetic coil and forms part of a flux path. An armature slides into and out of a bore of the pole and forms another part of the flux path. The armature has walls which define an axial recess formed in

A solenoid having a high degree of proportionality. A stationary pole is disposed within an electromagnetic coil and forms part of a flux path. An armature slides into and out of a bore of the pole and forms another part of the flux path. The armature has walls which define an axial recess formed in the armature face adjacent the pole. The armature walls have a cross-sectional thickness which decreases in a direction toward the bore. The walls of the pole bore have a cross-sectional thickness which decreases in a direction toward the armature. An air gap is formed between the decreasing thickness pole bore walls and armature walls which air gap remains substantially constant in the radial dimension as the armature slides.

대표청구항 ▼

A solenoid comprising electromagnet coil means; a stationary pole disposed within said coil and forming a part of a flux path; said pole having a bore defined by walls; an armature adapted to slide into and out of said said pole bore and forming another part of said flux path; said armature having a

A solenoid comprising electromagnet coil means; a stationary pole disposed within said coil and forming a part of a flux path; said pole having a bore defined by walls; an armature adapted to slide into and out of said said pole bore and forming another part of said flux path; said armature having armature walls defining an axial recess formed in the face of the armature adjacent said pole; said armature walls having a cross-sectional thickness which decreases in a direction toward said bore, said pole bore walls having a cross-sectional thickness which decreases in a direction toward said armature; an air gap formed between said pole bore walls of decreasing thickness and said armature walls of decreasing thickness, said air gap being substantially constant in the radial dimension during said sliding of said armature.